[llvm] [BOLT][WIP] Always treat function entry as code (PR #160161)

[Maksim Panchenko via llvm-commits]

maksfb wrote:

@yavtuk Have you seen the following commit to openssl? It basically duplicates your change, but for a different reasons:

https://github.com/openssl/openssl/commit/c6e65c1f8e627d2ff36134583628d49a7d2cc905

https://github.com/llvm/llvm-project/pull/160161